220515020280 has 192 divisors, whose sum is σ = 737027048160. Its totient is φ = 57154765824.

The previous prime is 220515020269. The next prime is 220515020339. The reversal of 220515020280 is 82020515022.

It is a super-2 number, since 2×220515020280² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1987554 + ... + 2095566.

Almost surely, 2^220515020280 is an apocalyptic number.

220515020280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220515020280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368513524080).

220515020280 is an abundant number, since it is smaller than the sum of its proper divisors (516512027880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220515020280 is a wasteful number, since it uses less digits than its factorization.

220515020280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108190 (or 108183 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 220515020280 in words is "two hundred twenty billion, five hundred fifteen million, twenty thousand, two hundred eighty".